Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979983 | Process for vacuum degassing and decarbonization with temperature drop compensating feature | Hiroshi Nishikawa, Kyoichi Kameyama | 1990-12-25 |
| 4353533 | Bottom tuyeres in an oxygen top-blown converter | Tatsukichi Chino, Takuo Imai, Masaaki Tsukamoto, Nagayasu Bessho, Kyoji Nakanishi | 1982-10-12 |